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Ethyl 4-hydroxybenzoate
Category:
Intermediates/Other Intermediates
Product name:
Ethyl 4-hydroxybenzoate
Molecular weight:
166.17
CAS NO:
120-47-8
EC NO:
204-399-4
Molecular formula:
C9H10O3
Specifications:
≥99%
Packing:
25 kg/cardboard drum
Properties:
Physical and chemical properties: White crystalline, slightly bitter in taste, burning, easily soluble in alcohol, ether, and acetone, almost insoluble in water, boiling point 297-298 ℃.
Project
Index
GB 8850-2005
B.P 2000
USP29-NF24
Appearance
/
Colorless crystalline or white crystalline powder
/
Content %≥
99.0-100.5
99.0-100.5
98.0-102.0
Melting point ℃
115-118
115-118
115-118
Acidity
/
Qualified
Qualified
SO42 %≤
0.024
/
/
Pb %≤
0.001
/
/
AS %≤
0.0001
/
/
Dry weight loss %≤
0.50
/
0.50
Burning residue %≤
0.05
0.1
0.1
Mass fraction of free acid% ≤
0.55
/
/
Related substances
/
Qualified
/
Appearance of solution
/
Clear and transparent
/
Organic volatile impurities
/
/
Qualified
Appraisal test
/
/
Qualified
Use:
Used as a food preservative and also in industries such as pharmaceuticals and leather